Constant fault code?

[grim1987]

Had a problem with code PO411 from the ECU as some numpty (me) fitted an external dump valve to the cupra. Now fitted the orignal bosch dump valve n had the codde removed 4 days ago.

Now the mangement light has popped up again, im just not sure what else could be wrong with the car as its the secondary air pump which has already been changed recontly, any ideas?

 

[Theresias]

Since when is the dump valve related to the secondary air injection?

http://wiki.ross-tech.com/index.php/16795/P0411/001041

Instead of just throwing new/expensive parts in it you could always follow the proper testing procedures.

 

[grim1987]

Cheers bud, apparantly there is a sensor in the induction hose that senses the boost out of the d.v

 

[Theresias]

Did you ran the basic setting/test for the SAI yet? What was the result?

 

[grim1987]

Sai?

 

[Theresias]

Secondary Air Injection (SAI)